Building a hinged pair of portable solar panels

Has anyone built their own pair of hinged panels to sit angled on the ground?
I have a pair of panels I'd like to put together like that. I've looked at a couple of commercial offerings on Youtube and have a pretty good idea of what to do. But if anyone has specifics about the pieces they used as far as hinges, latches, legs, etc., I'd love to know what you did.